MetaRepair is an utility tool for repairing hbase metadata table from hdfs regioninfo file. When using the Apache HBase™ versions before 2.0.3 and 2.1.1 (Without HBCK2), You can use it to fix the HBase metadata correctly.
Run:
$ mvn install
The built hbase-meta-repair jar will be in the target sub-directory.
Make sure HBase tools jar is added to HBase classpath:
export HBASE_CLASSPATH=$HBASE_CLASSPATH:./hbase-meta-repair-1.1.0-SNAPSHOT.jar
MetaRepair requires an arguments as parameters: The name of the table to have metadata repaired.
For example, to repair metadata of table my-table , assuming the setup step above has been performed:
$ hbase org.apache.hbase.repair.MetaRepair my-table
The table with namespace use
namespace:tablenameform of parameter.
HBase uses table hbase:meta to store metadata. The table structure is as follows:
| Column | Description |
|---|---|
| info:state | region state |
| info:sn | region server node, It consists of server and serverstartcode, such as slave1,16020,1557998852385 |
| info:serverstartcode | region server start timestamp |
| info:server | region server address and port，such as slave1:16020 |
| info:seqnumDuringOpen | a binary string representing the online duration of the region |
| info:regioninfo | same as the .regioninfo file |
info:seqnumDuringOpenandinfo:serverstartcodewill be automatically generated after the region server is restarted.